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Romeis, J and Shanower, T G and Zebitz, C P W (1998) Physical and chemical plant characters inhibiting the searching behaviour of Trichogramma chilonis. Entomologia Experimentalis et Applicata, 87 (3). pp. 275-284.
Christinck, A and Brocke, K Vom and Yadav, O P and Weltzien, E (1999) Evaluating Farmers' Pearl Millet Cultivars: Results from a Workshop on Farmer Participation in Breeding and Conservation of Genetic Resources. International Sorghum and Millets Newsletter, 40. pp. 52-53.
Haussmann, B I G and Obilana, A B and Ayiecho, P O and Blum, A and Schipprack, W and Geiger, H H (1999) Quantitative-genetic parameters of sorghum [Sorghum bicolor (L.) Moench] grown in semi-arid areas of Kenya. Euphytica, 105 (2). pp. 109-118. ISSN 0014-2336
Romeis, J and Shanower, T G and Zebitz, C P W (1999) Trichogramma egg parasitism of Helicoverpa armigera on pigeonpea and sorghum in southern India. Entomologia Experimentalis et Applicata, 90 (1). pp. 69-81.
Wossen, T and Berger, T and Nedumaran, S and Ramilan, T (2014) Climate variability, consumption risk and poverty in semi-arid Northern Ghana: Adaptation options for poor farm households. Environmental Development, 12. pp. 2-15. ISSN 2211-4599